/*
 *  Copyright (c) 2005-2014, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 *  WSO2 Inc. licenses this file to you under the Apache License,
 *  Version 2.0 (the "License"); you may not use this file except
 *  in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 *
 */
package org.wso2.msf4j.internal;

import java.io.Serializable;
import java.util.Comparator;

/**
 * Compares classes to see if they are subclasses.
 */
public class ClassComparator implements Comparator<Class>, Serializable {

    private static final long serialVersionUID = 2101798650978464444L;

    @Override
    public int compare(Class class1, Class class2) {
        if (class1.equals(class2)) {
            return 0;
        } else if (class1.isAssignableFrom(class2)) {
            return 1;
        } else {
            return -1;
        }
    }
}
